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Guest Message by DevFuse

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Subaru U-Joints

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5 replies to this topic

#1 Guest_Snowman_*

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Posted 27 July 2003 - 01:55 PM

It sounds like I need to replace at least one U-joint on my driveshaft. Is this an easy job to do? Can the joints be replaced, or does the whole shaft need to be replaced?

#2 Guest_chef tim_*

Guest_chef tim_*
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Posted 27 July 2003 - 02:50 PM

By design, the whole shaft is made to be replaced. However, if you know of a good drive line shop they should be able to put in removable ones. Tim

#3 Guest_Frank B_*

Guest_Frank B_*
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Posted 27 July 2003 - 04:28 PM

They are tack welded in place. A good driveline/4x4 shop can replace them and balance the shaft a hell of a lot chaeper than buying an entire driveshaft! If they allow you to, bring the u-joints, it may be cheaper. If my memory serves me right, NAPA(Precision) u-joint #812 is the one, and its greasable!!!!

#4 Guest_oobnuker_*

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Posted 27 July 2003 - 05:57 PM

On a similar note: Are the driveshafts the same for Auto vs. Manual? I have an '89 Fulltime 4WD GL Wagon 4EAT that's almost completely dismantled. I'm wondering if the driveshafts will be useable on my '90 Push-Button 4WD Loyale Wagon 5Speed.

#5 Guest_chef tim_*

Guest_chef tim_*
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Posted 27 July 2003 - 06:41 PM

I know that between the 3spd AT and a 5spd manual they are the same. I would "rump roast-u-me" that they would still be the same for the 4AT. Tim

#6 Guest_Hondasucks_*

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Posted 27 July 2003 - 10:52 PM

Yeah, I know on a Chevy for example, that teh drive shaft for a 700R4 (4 speed) is shorter than the one for a Th350 (3 speed) since teh case is longer, *but* those transmissions use a Simpson gear set for the 3 forward gears, (actually, 2 sets.. Both used in 1st, one in second, 3rd is 1:1) and have an additional planetary set for overdrive, but the Subaru uses a Ravigneux gear set, which allows for 4 gears in a smaller space. and since the 3 speeds are also Ravigneaux, I'd assume that both trannies would be the same length.

Annother interesting thing that I discovered, is that (apperently ) the Subaru automatic, uses a Jatco valve body, because the valve body in mine is stamped "3N71B" which is the Jatco 3 speed used in, among other things, Nissan pickups. Sooo, if the valve bodies are the same, it's theroetically possible there might be a shift kit out there for a Subaru! :-P Might only be a stage one MAYBE a stage 2, but would still be cool ;-)

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